As if Kakaako doesn’t have a lot going on already, a developer hopes to build a $10 million amusement facility in Kakaako that would include go-kart racing, a surfing wave pool and skateboard park. The project led by Billy Balding is slated for a 3-acre parcel leased from Kamehameha Schools near Kakaako Makai Gateway Park fronting Ala Moana. With 22 …